URLPattern: More WPT tests with '.' and '..'.

This CL adds some more test cases for issues discussed in:

whatwg/urlpattern#156

Change-Id: I885a61aa6be3d416babfa7c23b19465d0c63d07a

Author: wanderview

urlpattern/resources/urlpatterntestdata.json

@@ -2679,5 +2679,33 @@
     "expected_match": {
       "pathname": { "input": "/bar..", "groups": { "foo": "bar" } }
     }
+  },
+  {
+    "pattern": [{ "pathname": "./foo" }],
+    "inputs": [{ "pathname": "./foo" }],
+    "expected_match": {
+      "pathname": { "input": "./foo", "groups": {}}
+    }
+  },
+  {
+    "pattern": [{ "pathname": "../foo" }],
+    "inputs": [{ "pathname": "../foo" }],
+    "expected_match": {
+      "pathname": { "input": "../foo", "groups": {}}
+    }
+  },
+  {
+    "pattern": [{ "pathname": ":foo./" }],
+    "inputs": [{ "pathname": "bar./" }],
+    "expected_match": {
+      "pathname": { "input": "bar./", "groups": { "foo": "bar" }}
+    }
+  },
+  {
+    "pattern": [{ "pathname": ":foo../" }],
+    "inputs": [{ "pathname": "bar../" }],
+    "expected_match": {
+      "pathname": { "input": "bar../", "groups": { "foo": "bar" }}
+    }
   }
 ]